Advances in Environmental Research. Volume 73 first focuses on recent research, published mainly in the last two decades, is selected to provide a reasonably concise presentation of some of the latest findings, or emergent research topics, that are being addressed with modern technological approaches. A subsequent study aims to determine the combination and composition of tree species in private teak systems planted in three different types of land. The smallholder teak system is one form of land used by the farmers Gunungkidul. Following this, the authors provide an overview of the method of establishing cardamom-based agroforestry private forests in Ciamis, West Java. Data collection started with a survey identifying cropping patterns. Representatives of the family Cyprinidae in Bulgaria are studied, reviewing the available literature. 51 Cyprinid species occur in Bulgaria, most of them are freshwater and inhabiting still or running waters. One paper draws on the idea of territorial governance from recent political geography scholarships to analyze the making of water supply systems. It revisits the literature on water politics, shedding light on the interplay between the production of ecology and the construction of scale. The concluding chapter summarizes the advances in the genetic improvement of poplar for bioethanol production. A characterization of the biological processes determining biomass accumulation and chemical quality is presented, at different levels, including from the identification of nucleotide polymorphisms to the biochemical characterization of wood.